* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

li {
    list-style: none;
}

.person {
    position: relative;
    width: 200px;
    height: 240px;
    background: url(img/download.gif);
    background-position: center;
    background-repeat: no-repeat;
}

.soil {
    width: 800px;
    height: 20px;
    margin-left: 50px;
    background-color: red;
}

.father ul {
    position: fixed;
    display: flex;
    width: 800px;
    margin-left: 50px;
}

.father ul li:nth-child(1) {
    /* background-color: pink; */
    flex: 96%;
}

.father ul li:nth-child(2) {
    flex: 4%;
}
button {
    width: 50px;
    height: 50px;
}
.btn1 {
    margin-top: 50px;
    margin-left: 50px;
}
.btn2 {
    margin-top: 50px;
    margin-left: 700px;
}
.active {
    transform: rotateY(180deg);
    transform-origin: center center;
    transition: transform .5s linear;
}